APA (7th ed.) Citation

United States. Shipping Board. (1921). Daily shipping bulletin. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Shipping Board. Daily Shipping Bulletin. New York: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. Shipping Board. Daily Shipping Bulletin. [publisher not identified], 1921.

Warning: These citations may not always be 100% accurate.